“It is not a secret that Beyoncé and Jay had huge problems a couple of years ago,” an insider tells PEOPLE exclusively about the duo, who are also parents to 5½-year-old daughter Blue Ivy. “It was obvious to everyone that spent time with them.”

“Even though they didn’t get along great, they were together a lot because of Blue,” says the insider. “There was always tension in the air, but they both worked very hard to get to the place where they are now.”

“They are very excited about adding babies to the family,” says the source of the twins, who were born on June 13. “Jay was great during Beyoncé’s pregnancy and continues to be great. He loves being a dad and Beyoncé seems very happy.”

Listen, between ‘Lemonade,’ ‘4:44,’ the twins’ birth announcement and first photo, the Carters have been doing an amazing job of being an uplifting example of black love and marriage — so whatever magic Blue Ivy has been working, let’s hope she keeps it up.

For those of your who are married, have your children helped you and your spouse work through difficult issues?